#main {
  width: 100%;
  margin: 0 auto;
  max-width: 640px;
  position: relative;
}
#main #header {
  height: 130px;
}
#main #header .bg {
  width: 100%;
  height: 130px;
  background: url(../img/bg.gif);
  background-size: 100% 100%;
  margin: 0 auto;
  text-align: center;
}
#main #header .logo {
  width: 100px;
  height: 100px;
  margin: 0 auto;
  position: absolute;
  top: 36px;
  left: 50%;
  -webkit-transform: translateX(-50%);
  /*padding: 41px 0 20px 0;*/
}
#main #header .logo img {
  width: 100%;
  height: 100%;
}
#main #content {
  width: 100%;
  color: #009635;
  position: relative;
}
#main #content .title {
  height: 68px;
}
#main #content .title h4,
#main #content .title span {
  float: left;
  position: absolute;
  top: 23px;
}
#main #content .title h4 {
  left: 50%;
  font: bold 28px/48px "Microsoft YaHei";
  -webkit-transform: translateX(-50%);
}
#main #content .title span {
  float: left;
  width: 44px;
  height: 21px;
  background: #d2f7d4;
  text-align: center;
  border-radius: 5px;
  border: green solid 1px;
  position: absolute;
  left: 65%;
  top: 36px;
}
#main #content .versions {
  width: 100%;
  color: #B3B3B3;
}
#main #content .versions p {
  text-align: center;
}
#main #content .versions .version_num {
  font: normal 20px/28px "Microsoft YaHei";
}
#main #content .btn {
  width: 100%;
  text-align: center;
}
#main #content .btn a{
	    width:190px;
      height: 50px;
	    display: block;
	    margin: 25px auto 40px auto;
}
#main #content .btn input {
  width: 190px;
  height: 50px;
  font-size: 24px;
  color: #fff;
  cursor: pointer;
  font-weight: bold;
  background-image: -webkit-linear-gradient(top, #1fd07f, #05c486);
  border-radius: 30px;
  text-align: center;
}
#main #details {
  width: 88%;
  margin: 0 auto;
  padding-top: 30px;
  border-top: #E6E6E6 solid 2px;
}
#main #details h3 {
  margin-bottom: 20px;
  padding-left: 30px;
  color: #4d4d4d;
}
#main #details h3.intro {
  background: url(../img/icon1.gif) no-repeat 0 0;
}
#main #details p.introduction {
  color: #808080;
  margin-bottom: 20px;
  word-wrap: break-word;
}
#main #details ul.list {
  width: 100%;
  margin-bottom: 30px;
  overflow: hidden;
}
#main #details ul.list li {
  float: left;
  color: #b3b3b3;
  width: 20%;
  font: normal 14px/22px "Microsoft YaHei";
  /*margin-right: 2%;*/
  margin-bottom: 10px;
  padding-left: 26px;
}
#main #details ul.list li.virus {
  background: url(../img/icon2.gif) no-repeat 0 0;
}
#main #details ul.list li.ad {
  background: url(../img/icon3.gif) no-repeat 0 0;
}
#main #details ul.list li.ensure {
  background: url(../img/icon4.gif) no-repeat 0 0;
}
#main #details h3.update {
  background: url(../img/icon5.gif) no-repeat 0 0;
}
#main #details ul.bug {
  margin-bottom: 30px;
}
#main #details ul.bug li {
  color: #808080;
  font: normal 16px/28px "Microsoft YaHei";
}
#main .mask {
  width: 100%;
  height: 100%;
  background: #000;
  opacity: .6;
  display: none;
  padding: 30px 0;
  position: absolute;
  top: 0;
  left: 0;
}
#main .mask .img1 {
  width: 60%;
  height: 40%;
  float: right;
  text-align: center;
}
#main .mask .img2 {
  width: 70%;
  height: 20%;
  padding: 0 15%;
}
#main .mask .img3 {
  width: 25%;
  height: 10%;
  padding: 0 30%;
}
